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Hand Tool Variants Selection Based on Posture Risk
Kiran Mohan1, Pujara Dhaval Jayendrakumar2, V. Madhusudanan Pillai3, Praveen Sankaran4, Arun C5
1Research Scholar, 2Graduate Student, 3Professor; Department of Mechanical Engineering
4Assistant Professor; Department of Electronics and Communication Engineering National Institute of Technology Calicut, Calicut 673 601, Kerala, India
5 Professor, National Institute of Construction Management and Research-Goa, India
Page 13 – 33 | Vol. 6 No. 2 2021 | Available online on 1 December 2021
For a hand tool, varying the dimensional value of the selection parameters leads to different model variants. All the variants are not able to provide postural comfort and safety during work. This study suggests a method to identify ergonomically suitable hand tool variants that provide postural safety and comfort. Ten hand hoe variants used in the study are determined by varying the dimensional values of handle length, handle diameter and blade weight. The dynamically varying postures during soil loosening activity using each variant are identified from the video of hand hoe use. A sequence of image processing operations is used to extract, identify and classify postures from the video. The video-based data of ten women agricultural workers with ten hand hoe variants are classified and analysed for posture risk based on OWAS. The hand hoe variants are ranked based on postural safety and comfort. Thus, this paper presents an approach for the selection of hand tool variants considering posture risk.
Hand tool variants selection; Posture analysis; OWAS; Image processing
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Human Factors & Ergonomics Journal (HFEJ), eISSN: 2590-3705 is the official Journal of Human Factors and Ergonomics Society Malaysia. The journal is published on a biannual basis. HFEJ aims to address current research in the field of Ergonomics in addition to the broad coverage of cognitive ergonomics, user experience, physical ergonomics and others such as transportation, industrial design and industrial engineering. HFEJ is a member of, and subscribes to the principles of the COPE (Committee on Publication Ethics), as such we only accept original work.